Platform wagon-dump



(No Model.)

A. K. BRSLAND.

PLATFORM WAGON DUMP. No. 265,251. Patented 0011.3, 1882.

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(I: o 7k' e E 2i- 7kg H71 j g UNtTan STATES PATENT.

AMOS K. ERSLAND, OF SHELDAHL, IOWA.

PLATFORM WAGON-DUMP.

SPECIFICATION forming part of Letters Patent No. 265,251, dated October 3, 1882.

Application filed August 14, 1882. (No model.)

To all whom it may concern:

Beit known that I, AMos K. ERsLAND, o Sheldahl, in the county of Story and State of Iowa, have invented an Improved Platform Vagon-Dump, of which the followingisa speci- Iication.

The object of my invention is to provide a strong, durable, and efficient dump upon which wagons and cars loaded with grain, coal, and other commodities in bulk can be readily adjusted so as to allow their contents to slide off into a bin or other suitable receptacle.

lt consists, first, in combining a pendent ad- Vjustable track-support and a hinged trap-door view of the under side of' my complete dumping-platform. Fig. 2 is a longitudinal section, showing the track rails, tracksupport, and trap-door adjusted for the reception of' a wagon or car. Fig. 3 is a corresponding sectional view, showing the track-rails, the track-support, and its locking device in position as required in the act ot' dumping or unloading a wagon or car. Jointly considered, these figures clearly illustrate the construction, operation, and utility of my complete invention.

A A represent the side pieces, and B B the end pieces, of a plzttform-fraine that may vary in size as desired, and that can be permanently fixed in a grain-elevator building overa bin or series of bins, or wherever the platform and dump is to be used.

O U are pairs of joists fixed in the frame to support fiooring-planks, and to produce longi- D are guides formed on or fixed to the rear ends and under sides of the track-rails D. The end faces of these guides are curved and concentric with the center pivots and fulcrums,f.

Dl are elbows formed on or fixe-d to the front ends to adapt them to engage track-supports.

g g are rods or bolts fixed to the platform in such positions relatively to the track-rails that they will engage the elbows D and in connection with cross-pieces g restrict the upward movements of the front ends of the track-rails, as required to prevent the rear ends from being depressed below the level of the platform.

h is a track-support, in the form of a strong straightbar, suspended to thejoists C bymeans of bearers t', that are pivoted to the bolts g, and depend between the joists in such a manner that they can be readily swung to and from the front ends of' the track-rails, as required to adjust the track-support h rela-tively to the elbow-shaped ends D of the track-rails.

J is a trapdoor hinged in a corresponding opening in the tloor and front end ofthe platform in such a manner that it must be turned upward and away from the front ends ot' the track-rails.

7c lc are rods pivoted to thc under side of' the trap-door, and tlexibly connected with the suspended track-support h by passing their ends through perforated plates m, fixed to the crossbar and track-support, as clearly shown in Fig. 1. Nos. 1 and 2 represent enlargements, collars, or stops formed on or fixed to the rods 7;, to restrict the sliding movements of the rods relatively to the track-support h,and to aid in pushing and pulling the track-support to and from the front ends of the track-rails by means ofthe hinged trap-door.

n, n are metal plates pivoted between the joists C and in front of' the bearers i. They have hooks or elbows 1' at their i'ree ends to engage the traek-siipport h, as shown in Fig. 3, and terminate in exteusionss, that are engaged by the elbow-shaped ends D" of the track-rails in their upward movements, and thereby disengaged from the track-support h.

m represents a weight attached to the under side of the trap-door J to aid in closing it automatically.

In the practical operation of my invention a freighted wagon or car is advanced over the IOO platform and closed trap-door, so that the four wheels will engage and rest upon the two pivoted track-rails. By then opening the trapdoor it will perform the function of alever, and by means of the hinged rods k pull the pendent track-support h from under the ends of the track-rails and allow the rails to tilt and inoline the wagon or ear, as shown in Fig. 3, and also allow the locking devices a r s to drop down to engage the track-sul'iport h and retain it out of reach ot' the ends of the track-rails. I then open theend-gate of the wagon or car and allow its contents to slide oli" through the trap-door opening, and when a vehicle is thus expeditiously unloaded and balanced the trackrails will resume their normal level, and as their front ends ascend they will engage the projections s of the locking devices u r and elevate them to allow the track-support to resume its normal position under the ends of thetraekrails and the trapdoor to close by force of gravity, and thus automaticalltvY adjust the operative parts to prepare the complete platform and dump for thereeeption of anotherfreighted carriage.

I claim as my inventionl. The ixed bolts or bars y, the track-support 7L, suspended by means ot' bearers M, and pivoted track-rails having elbow-shaped ends D, arranged and combined in a dumpingplatform, substantially as shown and described, to operate in the manner set forth, for the purposes specified.

2. The locking devieesn 1' s, in combination with the suspended traek-supliort h and pivoted track-rails and a platform, substantially as set forth for the purposes specified.

3. rl'he wagon and car dumping platform composed ofthe frame and platform A B C, the track-rails D D D, the track-support h 'i f1?, having perforated plates lm, the trapldoor J, having hinged rods 7i', and the locking devices 'a fr s, substantially as shown and described, to operate in the manner set forth, for the purposes speeied.

Amos it. nnsLAND.

Witnesses:

OLnY i'ELsoN, C. B. HENDmKsoN. 

